12660428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 25310880

約数和(自身を除く): 12650452

約数列:

[1, 2, 4, 11, 22, 44, 53, 61, 89, 106, 122, 178, 212, 244, 356, 583, 671, 979, 1166, 1342, 1958, 2332, 2684, 3233, 3916, 4717, 5429, 6466, 9434, 10858, 12932, 18868, 21716, 35563, 51887, 59719, 71126, 103774, 119438, 142252, 207548, 238876, 287737, 575474, 1150948, 3165107, 6330214, 12660428]

約数ペア:

[(1, 12660428), (2, 6330214), (4, 3165107), (11, 1150948), (22, 575474), (44, 287737), (53, 238876), (61, 207548), (89, 142252), (106, 119438), (122, 103774), (178, 71126), (212, 59719), (244, 51887), (356, 35563), (583, 21716), (671, 18868), (979, 12932), (1166, 10858), (1342, 9434), (1958, 6466), (2332, 5429), (2684, 4717), (3233, 3916)]